21 Consonants: b c d f g h j k l m n p q r s t v w x y z. Letters are written in upper and lower case. The capital letters used for the first letter of a sentence or proper nouns, such as “The”, “The United States”, etc., are called uppercase letters. Small Letters: a b c d e f g h i j k  l m n o p q r s t u v w x y z. Capital letters: A B C D E F G I J K L M N O P Q R S T U V W Y Z. If the first letters are the same then arrange the words according to the next letters.